期权定价理论的实质及无形资产评估中的期权方法

本分析了期权的实质及期权定价的理论基础，阐述了期权方法在无形资产评估中的应用。期权的实质是一种选择权或是一种机会，直接度量这种机会的价格实际上很困难。Black—Scholes模型和二叉树模型本质上是以标的物的价格变动特性为基础，解决了期权的定价问题。而某些无形资产本身也具有期权类似性质，直接衡量它的价格很困难，但它的价值最终须以有形资产的价值体现出来。因此通过对无形资产所产生的有形资产价值规律的预测，即可较为客观、相对容易地评估无形资产。     

Financial constraints on export market exit of domestic firms versus foreign multinational corporation subsidiaries in South Korea

Using a Korean manufacturing firm-level data set covering a range of years from 2006 to 2013, this study investigates how the financial condition of firms, such as liquidity, leverage, and cash flow ratio, affects exit from export markets. It also analyses whether the financial status of foreign multinational corporation (MNC) subsidiaries differs from that of domestic firms with respect to the hazard of export market exit, especially during a global financial crisis. The empirical results confirm that, for domestic firms, the hazard of export market exit is affected by the firms’ financial condition only during a financial crisis. In other words, the financial vulnerability of domestic firms increases during the crisis, resulting in the hazard of export market exit. However, financial situations for foreign MNC subsidiaries do not affect exits from export markets, indicating a ‘finance-factor comparative advantage’.     

OWNERSHIP STRUCTURE AND FIRM EXIT ROUTES

ABSTRACT

Our study presents empirical evidence about the role of ownership structure for firm exit probability by explicitly differentiating between distinct exit routes (bankruptcy and forced liquidation, voluntary liquidation, mergers and acquisitions – M&A, and removal from the court register). Based on the population of Slovenian firms in the 2006–2012 period and using multinomial probit, our findings support the predictions of agency theory. Ownership concentration, share of the largest owner, and the difference in shares between two largest owners all decrease the likelihood of exit for all studied exit routes but M&A. The magnitude of their impact is largest for exits, in which owners play a decisive role, i.e. voluntary liquidation and removal. The link between the number of primary owners and exit likelihood is U-shaped with the lowest exit probability for firms with around two owners.     

基于期权思想的融券费率定价方法研究

证券融资融券交易是成熟证券市场普遍实施的一种交易制度。融券与融资不同,其标的不是资金而是证券,但两者都是信用业务,需要为相关交易支付一定的费用,融资的利率相对容易确定,而融券费率则比较复杂一些,目前各类管理规定中对此并没有明确的说法。本文借鉴了我国台湾地区的经验,计算出我国大陆地区试行融资融券可行的融券费率。     

经理人股票期权的会计计价

股票期权会计计价是股票期权制度的核心。股票期权费用化已为学界所接受,争论的焦点集中在方法的选择上。当前,应尽快明确计价方法,因为股票期权会计计价不仅是用来反映和核算股票期权经济行为的工具,更是调节各方利益的手段。因此,笔者建议采用"股利贴现模型"和"库藏股法"来分析不同计价方法对股权稀释的影响。     

Hedging derivative securities with genetic programming

One of the most recent applications of GP to finance is to use genetic programming to derive option pricing formulas. Earlier studies take the Black–Scholes model as the true model and use the artificial data generated by it to train and to test GP. The aim of this paper is to provide some initial evidence of the empirical relevance of GP to option pricing. By using the real data from S&P 500 index options, we train and test our GP by distinguishing the case in-the-money from the case out-of-the-money. Unlike most empirical studies, we do not evaluate the performance of GP in terms of its pricing accuracy. Instead, the derived GP tree is compared with the Black–Scholes model in its capability to hedge. To do so, a notion of tracking error is taken as the performance measure. Based on the post-sample performance, it is found that in approximately 20% of the 97 test paths GP has a lower tracking error than the Black–Scholes formula. We further compare our result with the ones obtained by radial basis functions and multilayer perceptrons and one-stage GP. Copyright © 1999 John Wiley & Sons, Ltd.     

国有战略性竞争行业的竞争力、调整方式及发展趋势

本文分析了国有经济介入到战略性竞争行业中的原因。运用主成分分析方法,对战略性竞争行业国有经济的竞争力进行了实证分析,得出战略性竞争行业国有经济的竞争力得分、排名及竞争力走势,并对战略性竞争行业中国有经济的调整方式及发展趋势进行了探讨。     

关于经理人股票期权会计确认与计量

近年来,我国引进西方国家流行的经理人股票期权,这是我国企业激励机制改革的有益尝试,也给会计处理带来了新问题,特别是经理人股票期权的会计确认和计量问题。     

激励制度创新与国有企业改革深化

深化国有企业改革既要建立对经理人员的激励机制,也需要建立对员工的激励机制。年薪制、股票期权制、管理层收购等激励制度已在我国国有企业改革中试行与实践,还应实施包括员工持股计划在内的股票期权计划和货币期权计划。     

基于复合期权的创业板上市公司IPO定价研究

指出传统IPO定价方法用于具有高风险、高成长性等特征的高新技术企业IPO定价的缺陷,将实物期权概念引入IPO定价研究中。根据高新技术企业项目投资的特征,引入复合期权建立相应的数学模型,采用复合期权方法建立高新技术企业的IPO定价模型。最后,通过算例分析说明该模型在实践运用中具有一定的借鉴意义。